MSK- tumours and swellings Flashcards
who are malignant primary bone tumours most common in
children- 10% of childhood cancers
commonest primary sarcoma of bone
osteosarcoma
4 main features of multiple myeloma
hypercalcaemia
anaemia
renal impairment
bone pain
primary bone tumour malignancy of chondrocytes
chondrosarcoma
what is ewings sarcoma
primary bone tumour of endothelial cells of bone marrow
what is Ewings sarcoma characterised by
loss of bone (lysis)
what does Ewings sarcoma mimic
infection
where does chondrosarcoma typically affect
pelvis or proximal femur
most common benign soft tissue tumour
lipomas
commonly affected areas for ganglion cysts
wrist, feet, ankles
what is a bakers cyst
fluid filled sac found in the knee joint
most common benign bone tumour
osteochondroma
who are osteochondromas most common in
young adults and adolescence
what do osteochondromas appear as
painless, hard lumps
what is the second most common benign bone tumour
enchondroma
what is the classical appearance of giant cell tumour of bone on XRAY
characteristic ‘soap bubble’ appearance
how do giant cell tumours of bone appear as
painful mass/swelling
‘Shepards crook’ deformity is a characteristic appearance of what benign developmental disorder of bone
fibrous dysplasia
osteoid osteoma (benign bone tumour typically occurs in children) characteristic pain-
intense, constant pain
worse at night
pain greatly relieved by NSAIDs
who does multiple myeloma most commonly affect
elderly patients
primary cancers which commonly metastasise to bone from most to least common (5)
breast cancer (24-26mnths)
prostate cancer (45%1yr)
lung cancer (6mnths)
renal cell carcinoma (12-18mnths)
thyroid cancer (varied, low)
which bones are most frequently involved with metastases
vertebra
pelvis
ribs
skull
femurs
